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Monday, May 17, 2021

Monday, May 17, 2021 — 11:30 PM EDT

Title: Minimum eigenvalue of nonbipartite graphs

Speaker: Bojan Mohar Affiliation: Simon Fraser University Zoom: Contact Soffia Arnadottir

Abstract:

Let \rho and \lambda be the largest and the smallest eigenvalue of a connected graph G. It is well-known that \rho + \lambda \geq 0 and that equality occurs if and only if G is bipartite. The speaker will discuss what else can we say when G is not bipartite.

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